222101220020210 has 16 divisors (see below), whose sum is σ = 401441043327192. Its totient is φ = 88471855276800.

The previous prime is 222101220020167. The next prime is 222101220020227. The reversal of 222101220020210 is 12020022101222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 221327420063929 + 773799956281 = 14877077^2 + 879659^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46079088881 + ... + 46079093700.

Almost surely, 2^{222101220020210} is an apocalyptic number.

222101220020210 is a deficient number, since it is larger than the sum of its proper divisors (179339823306982).

222101220020210 is a wasteful number, since it uses less digits than its factorization.

222101220020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92158182829.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222101220020210 its reverse (12020022101222), we get a palindrome (234121242121432).

The spelling of 222101220020210 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty million, twenty thousand, two hundred ten".